\documentclass{standalone}
\usepackage{tikz}
\usepackage{ctex,siunitx}
\setCJKmainfont{Noto Serif CJK SC}
\usepackage{tkz-euclide}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{circuitikz}
\usetikzlibrary{patterns, calc}
\usetikzlibrary {decorations.pathmorphing, decorations.pathreplacing, decorations.shapes,}
\ctikzset{bipoles/length=1cm}
\begin{document}
\small
\begin{circuitikz}[>=latex, scale=1.2,european]
  % \useasboundingbox(0.9,0)rectangle(5.1,5);
  \draw(0,0)node[left]{$+$}--(1-.2,0)--(1-.2,1.5) to [battery2] (2+.2,1.5)--(2+.2,0)--(3,0)node[right]{$-$};
  \draw (1-.2,0)--(1-.2,0.5) to [battery2,*-*] (2+.2,.5)--(2+.2,0);
  \draw (1-.2,0)--(1-.2,-0.5) to [battery2,*-*] (2+.2,-.5)--(2+.2,0);
  \draw (1-.2,0)--(1-.2,-1.5) to [battery2] (2+.2,-1.5)--(2+.2,0);
  \draw (1-.2,0) [fill=black] circle (1.2pt);
  \draw (2+.2,0) [fill=black] circle (1.2pt);
  \draw [fill=white](0,0) circle (2pt);
  \draw [fill=white](3,0) circle (2pt);
\end{circuitikz}
\end{document}